Home / 158,710.40-219,020.05-86,113.27

Finding the Fourth Proportional to 158,710.40, 219,020.05 and 86,113.27

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Solution

The fourth proportional to 158,710.40, 219,020.05 and 86,113.27 is: 118,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,710.40 : 219,020.05 = 86,113.27 : x
  2. Step 2: Convert to fraction form
    158,710.40/219,020.05 = 86,113.27/x
  3. Step 3: Cross multiply
    158,710.40x = 219,020.05 × 86,113.27
  4. Step 4: Simplify right side
    158,710.40x = 18,860,532,678.82
  5. Step 5: Solve for x
    x = 18,860,532,678.82/158,710.40
  6. Step 6: Final answer
    x = 118,836.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.