Home / 99,110.10-136,778.67-56,089.53

Finding the Fourth Proportional to 99,110.10, 136,778.67 and 56,089.53

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Solution

The fourth proportional to 99,110.10, 136,778.67 and 56,089.53 is: 77,407.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,110.10 : 136,778.67 = 56,089.53 : x
  2. Step 2: Convert to fraction form
    99,110.10/136,778.67 = 56,089.53/x
  3. Step 3: Cross multiply
    99,110.10x = 136,778.67 × 56,089.53
  4. Step 4: Simplify right side
    99,110.10x = 7,671,851,314.33
  5. Step 5: Solve for x
    x = 7,671,851,314.33/99,110.10
  6. Step 6: Final answer
    x = 77,407.36

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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.