Home / 112,587.64-155,369.54-61,599.72

Finding the Fourth Proportional to 112,587.64, 155,369.54 and 61,599.72

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Solution

The fourth proportional to 112,587.64, 155,369.54 and 61,599.72 is: 85,006.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,587.64 : 155,369.54 = 61,599.72 : x
  2. Step 2: Convert to fraction form
    112,587.64/155,369.54 = 61,599.72/x
  3. Step 3: Cross multiply
    112,587.64x = 155,369.54 × 61,599.72
  4. Step 4: Simplify right side
    112,587.64x = 9,570,720,897.16
  5. Step 5: Solve for x
    x = 9,570,720,897.16/112,587.64
  6. Step 6: Final answer
    x = 85,006.85

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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.