Home / 159,818.18-220,554.40-87,225.04

Finding the Fourth Proportional to 159,818.18, 220,554.40 and 87,225.04

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Solution

The fourth proportional to 159,818.18, 220,554.40 and 87,225.04 is: 120,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,818.18 : 220,554.40 = 87,225.04 : x
  2. Step 2: Convert to fraction form
    159,818.18/220,554.40 = 87,225.04/x
  3. Step 3: Cross multiply
    159,818.18x = 220,554.40 × 87,225.04
  4. Step 4: Simplify right side
    159,818.18x = 19,237,866,362.18
  5. Step 5: Solve for x
    x = 19,237,866,362.18/159,818.18
  6. Step 6: Final answer
    x = 120,373.45

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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.