Home / 99,740.90-137,647.70-57,302.16

Finding the Fourth Proportional to 99,740.90, 137,647.70 and 57,302.16

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Solution

The fourth proportional to 99,740.90, 137,647.70 and 57,302.16 is: 79,080.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,740.90 : 137,647.70 = 57,302.16 : x
  2. Step 2: Convert to fraction form
    99,740.90/137,647.70 = 57,302.16/x
  3. Step 3: Cross multiply
    99,740.90x = 137,647.70 × 57,302.16
  4. Step 4: Simplify right side
    99,740.90x = 7,887,510,529.03
  5. Step 5: Solve for x
    x = 7,887,510,529.03/99,740.90
  6. Step 6: Final answer
    x = 79,080.00

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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.