Home / 103,085.40-154,495.94-89,702.76

Finding the Fourth Proportional to 103,085.40, 154,495.94 and 89,702.76

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Solution

The fourth proportional to 103,085.40, 154,495.94 and 89,702.76 is: 134,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,085.40 : 154,495.94 = 89,702.76 : x
  2. Step 2: Convert to fraction form
    103,085.40/154,495.94 = 89,702.76/x
  3. Step 3: Cross multiply
    103,085.40x = 154,495.94 × 89,702.76
  4. Step 4: Simplify right side
    103,085.40x = 13,858,712,226.79
  5. Step 5: Solve for x
    x = 13,858,712,226.79/103,085.40
  6. Step 6: Final answer
    x = 134,439.14

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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.