Home / 112,717.08-155,549.70-62,415

Finding the Fourth Proportional to 112,717.08, 155,549.70 and 62,415

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Solution

The fourth proportional to 112,717.08, 155,549.70 and 62,415 is: 86,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,717.08 : 155,549.70 = 62,415 : x
  2. Step 2: Convert to fraction form
    112,717.08/155,549.70 = 62,415/x
  3. Step 3: Cross multiply
    112,717.08x = 155,549.70 × 62,415
  4. Step 4: Simplify right side
    112,717.08x = 9,708,634,525.50
  5. Step 5: Solve for x
    x = 9,708,634,525.50/112,717.08
  6. Step 6: Final answer
    x = 86,132.77

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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.