Home / 126,424.19-189,572.81-42,154.53

Finding the Fourth Proportional to 126,424.19, 189,572.81 and 42,154.53

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Solution

The fourth proportional to 126,424.19, 189,572.81 and 42,154.53 is: 63,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,424.19 : 189,572.81 = 42,154.53 : x
  2. Step 2: Convert to fraction form
    126,424.19/189,572.81 = 42,154.53/x
  3. Step 3: Cross multiply
    126,424.19x = 189,572.81 × 42,154.53
  4. Step 4: Simplify right side
    126,424.19x = 7,991,351,784.66
  5. Step 5: Solve for x
    x = 7,991,351,784.66/126,424.19
  6. Step 6: Final answer
    x = 63,210.62

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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.