Home / 138,853.90-191,475.05-118,777.24

Finding the Fourth Proportional to 138,853.90, 191,475.05 and 118,777.24

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Solution

The fourth proportional to 138,853.90, 191,475.05 and 118,777.24 is: 163,789.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,853.90 : 191,475.05 = 118,777.24 : x
  2. Step 2: Convert to fraction form
    138,853.90/191,475.05 = 118,777.24/x
  3. Step 3: Cross multiply
    138,853.90x = 191,475.05 × 118,777.24
  4. Step 4: Simplify right side
    138,853.90x = 22,742,876,895.29
  5. Step 5: Solve for x
    x = 22,742,876,895.29/138,853.90
  6. Step 6: Final answer
    x = 163,789.98

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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.