Home / 156,085.13-215,397.47-84,465.15

Finding the Fourth Proportional to 156,085.13, 215,397.47 and 84,465.15

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Solution

The fourth proportional to 156,085.13, 215,397.47 and 84,465.15 is: 116,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,085.13 : 215,397.47 = 84,465.15 : x
  2. Step 2: Convert to fraction form
    156,085.13/215,397.47 = 84,465.15/x
  3. Step 3: Cross multiply
    156,085.13x = 215,397.47 × 84,465.15
  4. Step 4: Simplify right side
    156,085.13x = 18,193,579,578.84
  5. Step 5: Solve for x
    x = 18,193,579,578.84/156,085.13
  6. Step 6: Final answer
    x = 116,561.90

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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.