Home / 105,475,931.60-158,213,897.40-87,336,078.80

Finding the Fourth Proportional to 105,475,931.60, 158,213,897.40 and 87,336,078.80

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Solution

The fourth proportional to 105,475,931.60, 158,213,897.40 and 87,336,078.80 is: 131,004,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,475,931.60 : 158,213,897.40 = 87,336,078.80 : x
  2. Step 2: Convert to fraction form
    105,475,931.60/158,213,897.40 = 87,336,078.80/x
  3. Step 3: Cross multiply
    105,475,931.60x = 158,213,897.40 × 87,336,078.80
  4. Step 4: Simplify right side
    105,475,931.60x = 13,817,781,410,581,516
  5. Step 5: Solve for x
    x = 13,817,781,410,581,516/105,475,931.60
  6. Step 6: Final answer
    x = 131,004,118.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.