Home / 110,428.91-152,353.04-72,210.81

Finding the Fourth Proportional to 110,428.91, 152,353.04 and 72,210.81

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Solution

The fourth proportional to 110,428.91, 152,353.04 and 72,210.81 is: 99,625.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,428.91 : 152,353.04 = 72,210.81 : x
  2. Step 2: Convert to fraction form
    110,428.91/152,353.04 = 72,210.81/x
  3. Step 3: Cross multiply
    110,428.91x = 152,353.04 × 72,210.81
  4. Step 4: Simplify right side
    110,428.91x = 11,001,536,063.31
  5. Step 5: Solve for x
    x = 11,001,536,063.31/110,428.91
  6. Step 6: Final answer
    x = 99,625.51

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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.