Home / 97,356.24-145,886.13-72,278.64

Finding the Fourth Proportional to 97,356.24, 145,886.13 and 72,278.64

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Solution

The fourth proportional to 97,356.24, 145,886.13 and 72,278.64 is: 108,307.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,356.24 : 145,886.13 = 72,278.64 : x
  2. Step 2: Convert to fraction form
    97,356.24/145,886.13 = 72,278.64/x
  3. Step 3: Cross multiply
    97,356.24x = 145,886.13 × 72,278.64
  4. Step 4: Simplify right side
    97,356.24x = 10,544,451,071.26
  5. Step 5: Solve for x
    x = 10,544,451,071.26/97,356.24
  6. Step 6: Final answer
    x = 108,307.91

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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.