Home / 99,037.18-136,671.38-53,715.15

Finding the Fourth Proportional to 99,037.18, 136,671.38 and 53,715.15

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Solution

The fourth proportional to 99,037.18, 136,671.38 and 53,715.15 is: 74,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,037.18 : 136,671.38 = 53,715.15 : x
  2. Step 2: Convert to fraction form
    99,037.18/136,671.38 = 53,715.15/x
  3. Step 3: Cross multiply
    99,037.18x = 136,671.38 × 53,715.15
  4. Step 4: Simplify right side
    99,037.18x = 7,341,323,408.83
  5. Step 5: Solve for x
    x = 7,341,323,408.83/99,037.18
  6. Step 6: Final answer
    x = 74,126.94

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1.5x scale

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.