Home / 158,735.16-219,053.85-87,116.40

Finding the Fourth Proportional to 158,735.16, 219,053.85 and 87,116.40

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Solution

The fourth proportional to 158,735.16, 219,053.85 and 87,116.40 is: 120,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,735.16 : 219,053.85 = 87,116.40 : x
  2. Step 2: Convert to fraction form
    158,735.16/219,053.85 = 87,116.40/x
  3. Step 3: Cross multiply
    158,735.16x = 219,053.85 × 87,116.40
  4. Step 4: Simplify right side
    158,735.16x = 19,083,182,818.14
  5. Step 5: Solve for x
    x = 19,083,182,818.14/158,735.16
  6. Step 6: Final answer
    x = 120,220.26

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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.