Home / 153,033.81-229,574.45-78,113.36

Finding the Fourth Proportional to 153,033.81, 229,574.45 and 78,113.36

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Solution

The fourth proportional to 153,033.81, 229,574.45 and 78,113.36 is: 117,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,033.81 : 229,574.45 = 78,113.36 : x
  2. Step 2: Convert to fraction form
    153,033.81/229,574.45 = 78,113.36/x
  3. Step 3: Cross multiply
    153,033.81x = 229,574.45 × 78,113.36
  4. Step 4: Simplify right side
    153,033.81x = 17,932,832,428.87
  5. Step 5: Solve for x
    x = 17,932,832,428.87/153,033.81
  6. Step 6: Final answer
    x = 117,182.16

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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.