Home / 151,713.83-209,321.93-91,254.21

Finding the Fourth Proportional to 151,713.83, 209,321.93 and 91,254.21

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Solution

The fourth proportional to 151,713.83, 209,321.93 and 91,254.21 is: 125,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,713.83 : 209,321.93 = 91,254.21 : x
  2. Step 2: Convert to fraction form
    151,713.83/209,321.93 = 91,254.21/x
  3. Step 3: Cross multiply
    151,713.83x = 209,321.93 × 91,254.21
  4. Step 4: Simplify right side
    151,713.83x = 19,101,506,901.55
  5. Step 5: Solve for x
    x = 19,101,506,901.55/151,713.83
  6. Step 6: Final answer
    x = 125,904.85

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1.5x scale

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.