Home / 99,878.90-137,816.51-59,037.35

Finding the Fourth Proportional to 99,878.90, 137,816.51 and 59,037.35

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Solution

The fourth proportional to 99,878.90, 137,816.51 and 59,037.35 is: 81,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,878.90 : 137,816.51 = 59,037.35 : x
  2. Step 2: Convert to fraction form
    99,878.90/137,816.51 = 59,037.35/x
  3. Step 3: Cross multiply
    99,878.90x = 137,816.51 × 59,037.35
  4. Step 4: Simplify right side
    99,878.90x = 8,136,320,552.38
  5. Step 5: Solve for x
    x = 8,136,320,552.38/99,878.90
  6. Step 6: Final answer
    x = 81,461.86

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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.