Home / 112,381.05-155,088.09-61,395.83

Finding the Fourth Proportional to 112,381.05, 155,088.09 and 61,395.83

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Solution

The fourth proportional to 112,381.05, 155,088.09 and 61,395.83 is: 84,727.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,381.05 : 155,088.09 = 61,395.83 : x
  2. Step 2: Convert to fraction form
    112,381.05/155,088.09 = 61,395.83/x
  3. Step 3: Cross multiply
    112,381.05x = 155,088.09 × 61,395.83
  4. Step 4: Simplify right side
    112,381.05x = 9,521,762,008.66
  5. Step 5: Solve for x
    x = 9,521,762,008.66/112,381.05
  6. Step 6: Final answer
    x = 84,727.47

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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.