Home / 99,128.73-136,798.02-53,806.80

Finding the Fourth Proportional to 99,128.73, 136,798.02 and 53,806.80

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Solution

The fourth proportional to 99,128.73, 136,798.02 and 53,806.80 is: 74,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,128.73 : 136,798.02 = 53,806.80 : x
  2. Step 2: Convert to fraction form
    99,128.73/136,798.02 = 53,806.80/x
  3. Step 3: Cross multiply
    99,128.73x = 136,798.02 × 53,806.80
  4. Step 4: Simplify right side
    99,128.73x = 7,360,663,702.54
  5. Step 5: Solve for x
    x = 7,360,663,702.54/99,128.73
  6. Step 6: Final answer
    x = 74,253.59

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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.