Home / 145,050.60-217,575.54-81,841.98

Finding the Fourth Proportional to 145,050.60, 217,575.54 and 81,841.98

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Solution

The fourth proportional to 145,050.60, 217,575.54 and 81,841.98 is: 122,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,050.60 : 217,575.54 = 81,841.98 : x
  2. Step 2: Convert to fraction form
    145,050.60/217,575.54 = 81,841.98/x
  3. Step 3: Cross multiply
    145,050.60x = 217,575.54 × 81,841.98
  4. Step 4: Simplify right side
    145,050.60x = 17,806,812,993.17
  5. Step 5: Solve for x
    x = 17,806,812,993.17/145,050.60
  6. Step 6: Final answer
    x = 122,762.77

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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.