Home / 112,931.48-155,844.36-61,943.15

Finding the Fourth Proportional to 112,931.48, 155,844.36 and 61,943.15

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Solution

The fourth proportional to 112,931.48, 155,844.36 and 61,943.15 is: 85,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,931.48 : 155,844.36 = 61,943.15 : x
  2. Step 2: Convert to fraction form
    112,931.48/155,844.36 = 61,943.15/x
  3. Step 3: Cross multiply
    112,931.48x = 155,844.36 × 61,943.15
  4. Step 4: Simplify right side
    112,931.48x = 9,653,490,568.13
  5. Step 5: Solve for x
    x = 9,653,490,568.13/112,931.48
  6. Step 6: Final answer
    x = 85,480.95

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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.