Home / 107,040.53-147,543.76-72,574.09

Finding the Fourth Proportional to 107,040.53, 147,543.76 and 72,574.09

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Solution

The fourth proportional to 107,040.53, 147,543.76 and 72,574.09 is: 100,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,040.53 : 147,543.76 = 72,574.09 : x
  2. Step 2: Convert to fraction form
    107,040.53/147,543.76 = 72,574.09/x
  3. Step 3: Cross multiply
    107,040.53x = 147,543.76 × 72,574.09
  4. Step 4: Simplify right side
    107,040.53x = 10,707,854,117.18
  5. Step 5: Solve for x
    x = 10,707,854,117.18/107,040.53
  6. Step 6: Final answer
    x = 100,035.51

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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.