Home / 123,842.30-170,898.90-70,132.40

Finding the Fourth Proportional to 123,842.30, 170,898.90 and 70,132.40

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Solution

The fourth proportional to 123,842.30, 170,898.90 and 70,132.40 is: 96,780.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,842.30 : 170,898.90 = 70,132.40 : x
  2. Step 2: Convert to fraction form
    123,842.30/170,898.90 = 70,132.40/x
  3. Step 3: Cross multiply
    123,842.30x = 170,898.90 × 70,132.40
  4. Step 4: Simplify right side
    123,842.30x = 11,985,550,014.36
  5. Step 5: Solve for x
    x = 11,985,550,014.36/123,842.30
  6. Step 6: Final answer
    x = 96,780.74

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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.