Home / 109,430.34-151,042.55-71,294.55

Finding the Fourth Proportional to 109,430.34, 151,042.55 and 71,294.55

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Solution

The fourth proportional to 109,430.34, 151,042.55 and 71,294.55 is: 98,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,430.34 : 151,042.55 = 71,294.55 : x
  2. Step 2: Convert to fraction form
    109,430.34/151,042.55 = 71,294.55/x
  3. Step 3: Cross multiply
    109,430.34x = 151,042.55 × 71,294.55
  4. Step 4: Simplify right side
    109,430.34x = 10,768,510,276.63
  5. Step 5: Solve for x
    x = 10,768,510,276.63/109,430.34
  6. Step 6: Final answer
    x = 98,405.16

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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.