Home / 112,821.02-155,695.02-61,830.38

Finding the Fourth Proportional to 112,821.02, 155,695.02 and 61,830.38

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Solution

The fourth proportional to 112,821.02, 155,695.02 and 61,830.38 is: 85,327.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,821.02 : 155,695.02 = 61,830.38 : x
  2. Step 2: Convert to fraction form
    112,821.02/155,695.02 = 61,830.38/x
  3. Step 3: Cross multiply
    112,821.02x = 155,695.02 × 61,830.38
  4. Step 4: Simplify right side
    112,821.02x = 9,626,681,472.23
  5. Step 5: Solve for x
    x = 9,626,681,472.23/112,821.02
  6. Step 6: Final answer
    x = 85,327.02

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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.