Home / 153,435.13-230,155.57-42,630.01

Finding the Fourth Proportional to 153,435.13, 230,155.57 and 42,630.01

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Solution

The fourth proportional to 153,435.13, 230,155.57 and 42,630.01 is: 63,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,435.13 : 230,155.57 = 42,630.01 : x
  2. Step 2: Convert to fraction form
    153,435.13/230,155.57 = 42,630.01/x
  3. Step 3: Cross multiply
    153,435.13x = 230,155.57 × 42,630.01
  4. Step 4: Simplify right side
    153,435.13x = 9,811,534,250.66
  5. Step 5: Solve for x
    x = 9,811,534,250.66/153,435.13
  6. Step 6: Final answer
    x = 63,945.81

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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.