Home / 152,913.48-229,148.43-86,211.30

Finding the Fourth Proportional to 152,913.48, 229,148.43 and 86,211.30

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Solution

The fourth proportional to 152,913.48, 229,148.43 and 86,211.30 is: 129,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,913.48 : 229,148.43 = 86,211.30 : x
  2. Step 2: Convert to fraction form
    152,913.48/229,148.43 = 86,211.30/x
  3. Step 3: Cross multiply
    152,913.48x = 229,148.43 × 86,211.30
  4. Step 4: Simplify right side
    152,913.48x = 19,755,184,043.26
  5. Step 5: Solve for x
    x = 19,755,184,043.26/152,913.48
  6. Step 6: Final answer
    x = 129,191.91

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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.