Home / 155,897.10-215,132.76-98,567.28

Finding the Fourth Proportional to 155,897.10, 215,132.76 and 98,567.28

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Solution

The fourth proportional to 155,897.10, 215,132.76 and 98,567.28 is: 136,019.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,897.10 : 215,132.76 = 98,567.28 : x
  2. Step 2: Convert to fraction form
    155,897.10/215,132.76 = 98,567.28/x
  3. Step 3: Cross multiply
    155,897.10x = 215,132.76 × 98,567.28
  4. Step 4: Simplify right side
    155,897.10x = 21,205,050,992.09
  5. Step 5: Solve for x
    x = 21,205,050,992.09/155,897.10
  6. Step 6: Final answer
    x = 136,019.53

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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.