Home / 165,742.90-248,614.35-72,430.90

Finding the Fourth Proportional to 165,742.90, 248,614.35 and 72,430.90

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Solution

The fourth proportional to 165,742.90, 248,614.35 and 72,430.90 is: 108,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,742.90 : 248,614.35 = 72,430.90 : x
  2. Step 2: Convert to fraction form
    165,742.90/248,614.35 = 72,430.90/x
  3. Step 3: Cross multiply
    165,742.90x = 248,614.35 × 72,430.90
  4. Step 4: Simplify right side
    165,742.90x = 18,007,361,123.42
  5. Step 5: Solve for x
    x = 18,007,361,123.42/165,742.90
  6. Step 6: Final answer
    x = 108,646.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.