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Finding the Fourth Proportional to 159,492.48, 220,098.54 and 87,870.84

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Solution

The fourth proportional to 159,492.48, 220,098.54 and 87,870.84 is: 121,261.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,492.48 : 220,098.54 = 87,870.84 : x
  2. Step 2: Convert to fraction form
    159,492.48/220,098.54 = 87,870.84/x
  3. Step 3: Cross multiply
    159,492.48x = 220,098.54 × 87,870.84
  4. Step 4: Simplify right side
    159,492.48x = 19,340,243,592.57
  5. Step 5: Solve for x
    x = 19,340,243,592.57/159,492.48
  6. Step 6: Final answer
    x = 121,261.16

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1.5x scale

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.