Home / 99,088.31-136,741.97-56,647.76

Finding the Fourth Proportional to 99,088.31, 136,741.97 and 56,647.76

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Solution

The fourth proportional to 99,088.31, 136,741.97 and 56,647.76 is: 78,173.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,088.31 : 136,741.97 = 56,647.76 : x
  2. Step 2: Convert to fraction form
    99,088.31/136,741.97 = 56,647.76/x
  3. Step 3: Cross multiply
    99,088.31x = 136,741.97 × 56,647.76
  4. Step 4: Simplify right side
    99,088.31x = 7,746,125,756.40
  5. Step 5: Solve for x
    x = 7,746,125,756.40/99,088.31
  6. Step 6: Final answer
    x = 78,173.96

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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.