Home / 112,763.07-155,523.24-72,480.96

Finding the Fourth Proportional to 112,763.07, 155,523.24 and 72,480.96

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Solution

The fourth proportional to 112,763.07, 155,523.24 and 72,480.96 is: 99,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,763.07 : 155,523.24 = 72,480.96 : x
  2. Step 2: Convert to fraction form
    112,763.07/155,523.24 = 72,480.96/x
  3. Step 3: Cross multiply
    112,763.07x = 155,523.24 × 72,480.96
  4. Step 4: Simplify right side
    112,763.07x = 11,272,473,737.51
  5. Step 5: Solve for x
    x = 11,272,473,737.51/112,763.07
  6. Step 6: Final answer
    x = 99,966.01

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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.