Home / 102,599.40-153,953.27-72,806.16

Finding the Fourth Proportional to 102,599.40, 153,953.27 and 72,806.16

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Solution

The fourth proportional to 102,599.40, 153,953.27 and 72,806.16 is: 109,247.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,599.40 : 153,953.27 = 72,806.16 : x
  2. Step 2: Convert to fraction form
    102,599.40/153,953.27 = 72,806.16/x
  3. Step 3: Cross multiply
    102,599.40x = 153,953.27 × 72,806.16
  4. Step 4: Simplify right side
    102,599.40x = 11,208,746,408.14
  5. Step 5: Solve for x
    x = 11,208,746,408.14/102,599.40
  6. Step 6: Final answer
    x = 109,247.68

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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.