Home / 113,817.20-157,047-97,876.40

Finding the Fourth Proportional to 113,817.20, 157,047 and 97,876.40

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Solution

The fourth proportional to 113,817.20, 157,047 and 97,876.40 is: 135,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,817.20 : 157,047 = 97,876.40 : x
  2. Step 2: Convert to fraction form
    113,817.20/157,047 = 97,876.40/x
  3. Step 3: Cross multiply
    113,817.20x = 157,047 × 97,876.40
  4. Step 4: Simplify right side
    113,817.20x = 15,371,194,990.80
  5. Step 5: Solve for x
    x = 15,371,194,990.80/113,817.20
  6. Step 6: Final answer
    x = 135,051.60

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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.