Home / 123,567.90-170,534.28-69,862.47

Finding the Fourth Proportional to 123,567.90, 170,534.28 and 69,862.47

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Solution

The fourth proportional to 123,567.90, 170,534.28 and 69,862.47 is: 96,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,567.90 : 170,534.28 = 69,862.47 : x
  2. Step 2: Convert to fraction form
    123,567.90/170,534.28 = 69,862.47/x
  3. Step 3: Cross multiply
    123,567.90x = 170,534.28 × 69,862.47
  4. Step 4: Simplify right side
    123,567.90x = 11,913,946,020.47
  5. Step 5: Solve for x
    x = 11,913,946,020.47/123,567.90
  6. Step 6: Final answer
    x = 96,416.19

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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.