Home / 147,015.40-220,085.70-97,151.80

Finding the Fourth Proportional to 147,015.40, 220,085.70 and 97,151.80

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Solution

The fourth proportional to 147,015.40, 220,085.70 and 97,151.80 is: 145,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015.40 : 220,085.70 = 97,151.80 : x
  2. Step 2: Convert to fraction form
    147,015.40/220,085.70 = 97,151.80/x
  3. Step 3: Cross multiply
    147,015.40x = 220,085.70 × 97,151.80
  4. Step 4: Simplify right side
    147,015.40x = 21,381,721,909.26
  5. Step 5: Solve for x
    x = 21,381,721,909.26/147,015.40
  6. Step 6: Final answer
    x = 145,438.65

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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.