Home / 147,830.90-221,746.35-54,317.30

Finding the Fourth Proportional to 147,830.90, 221,746.35 and 54,317.30

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Solution

The fourth proportional to 147,830.90, 221,746.35 and 54,317.30 is: 81,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,830.90 : 221,746.35 = 54,317.30 : x
  2. Step 2: Convert to fraction form
    147,830.90/221,746.35 = 54,317.30/x
  3. Step 3: Cross multiply
    147,830.90x = 221,746.35 × 54,317.30
  4. Step 4: Simplify right side
    147,830.90x = 12,044,663,016.86
  5. Step 5: Solve for x
    x = 12,044,663,016.86/147,830.90
  6. Step 6: Final answer
    x = 81,475.95

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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.