Home / 153,043.04-229,342.21-86,341.37

Finding the Fourth Proportional to 153,043.04, 229,342.21 and 86,341.37

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Solution

The fourth proportional to 153,043.04, 229,342.21 and 86,341.37 is: 129,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,043.04 : 229,342.21 = 86,341.37 : x
  2. Step 2: Convert to fraction form
    153,043.04/229,342.21 = 86,341.37/x
  3. Step 3: Cross multiply
    153,043.04x = 229,342.21 × 86,341.37
  4. Step 4: Simplify right side
    153,043.04x = 19,801,719,247.66
  5. Step 5: Solve for x
    x = 19,801,719,247.66/153,043.04
  6. Step 6: Final answer
    x = 129,386.60

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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.