Home / 156,967.43-216,612.47-85,349.25

Finding the Fourth Proportional to 156,967.43, 216,612.47 and 85,349.25

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Solution

The fourth proportional to 156,967.43, 216,612.47 and 85,349.25 is: 117,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,967.43 : 216,612.47 = 85,349.25 : x
  2. Step 2: Convert to fraction form
    156,967.43/216,612.47 = 85,349.25/x
  3. Step 3: Cross multiply
    156,967.43x = 216,612.47 × 85,349.25
  4. Step 4: Simplify right side
    156,967.43x = 18,487,712,068.52
  5. Step 5: Solve for x
    x = 18,487,712,068.52/156,967.43
  6. Step 6: Final answer
    x = 117,780.57

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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.