Home / 156,145.50-215,421.99-102,460.14

Finding the Fourth Proportional to 156,145.50, 215,421.99 and 102,460.14

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Solution

The fourth proportional to 156,145.50, 215,421.99 and 102,460.14 is: 141,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,145.50 : 215,421.99 = 102,460.14 : x
  2. Step 2: Convert to fraction form
    156,145.50/215,421.99 = 102,460.14/x
  3. Step 3: Cross multiply
    156,145.50x = 215,421.99 × 102,460.14
  4. Step 4: Simplify right side
    156,145.50x = 22,072,167,254.48
  5. Step 5: Solve for x
    x = 22,072,167,254.48/156,145.50
  6. Step 6: Final answer
    x = 141,356.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.