Home / 156,605.53-216,115.77-84,985.55

Finding the Fourth Proportional to 156,605.53, 216,115.77 and 84,985.55

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Solution

The fourth proportional to 156,605.53, 216,115.77 and 84,985.55 is: 117,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,605.53 : 216,115.77 = 84,985.55 : x
  2. Step 2: Convert to fraction form
    156,605.53/216,115.77 = 84,985.55/x
  3. Step 3: Cross multiply
    156,605.53x = 216,115.77 × 84,985.55
  4. Step 4: Simplify right side
    156,605.53x = 18,366,717,577.12
  5. Step 5: Solve for x
    x = 18,366,717,577.12/156,605.53
  6. Step 6: Final answer
    x = 117,280.13

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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.