Home / 124,275.12-171,499.64-67,686.50

Finding the Fourth Proportional to 124,275.12, 171,499.64 and 67,686.50

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Solution

The fourth proportional to 124,275.12, 171,499.64 and 67,686.50 is: 93,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,275.12 : 171,499.64 = 67,686.50 : x
  2. Step 2: Convert to fraction form
    124,275.12/171,499.64 = 67,686.50/x
  3. Step 3: Cross multiply
    124,275.12x = 171,499.64 × 67,686.50
  4. Step 4: Simplify right side
    124,275.12x = 11,608,209,186.93
  5. Step 5: Solve for x
    x = 11,608,209,186.93/124,275.12
  6. Step 6: Final answer
    x = 93,407.35

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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.