Home / 147,187.80-220,781.70-76,110.30

Finding the Fourth Proportional to 147,187.80, 220,781.70 and 76,110.30

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Solution

The fourth proportional to 147,187.80, 220,781.70 and 76,110.30 is: 114,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,187.80 : 220,781.70 = 76,110.30 : x
  2. Step 2: Convert to fraction form
    147,187.80/220,781.70 = 76,110.30/x
  3. Step 3: Cross multiply
    147,187.80x = 220,781.70 × 76,110.30
  4. Step 4: Simplify right side
    147,187.80x = 16,803,761,421.51
  5. Step 5: Solve for x
    x = 16,803,761,421.51/147,187.80
  6. Step 6: Final answer
    x = 114,165.45

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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.