Home / 112,385.94-155,089.95-61,398.93

Finding the Fourth Proportional to 112,385.94, 155,089.95 and 61,398.93

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Solution

The fourth proportional to 112,385.94, 155,089.95 and 61,398.93 is: 84,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,385.94 : 155,089.95 = 61,398.93 : x
  2. Step 2: Convert to fraction form
    112,385.94/155,089.95 = 61,398.93/x
  3. Step 3: Cross multiply
    112,385.94x = 155,089.95 × 61,398.93
  4. Step 4: Simplify right side
    112,385.94x = 9,522,356,983.75
  5. Step 5: Solve for x
    x = 9,522,356,983.75/112,385.94
  6. Step 6: Final answer
    x = 84,729.08

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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.