Home / 133,069.60-199,312.80-70,667.20

Finding the Fourth Proportional to 133,069.60, 199,312.80 and 70,667.20

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Solution

The fourth proportional to 133,069.60, 199,312.80 and 70,667.20 is: 105,845.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,069.60 : 199,312.80 = 70,667.20 : x
  2. Step 2: Convert to fraction form
    133,069.60/199,312.80 = 70,667.20/x
  3. Step 3: Cross multiply
    133,069.60x = 199,312.80 × 70,667.20
  4. Step 4: Simplify right side
    133,069.60x = 14,084,877,500.16
  5. Step 5: Solve for x
    x = 14,084,877,500.16/133,069.60
  6. Step 6: Final answer
    x = 105,845.94

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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.