Home / 103,655.46-143,051.79-58,337.80

Finding the Fourth Proportional to 103,655.46, 143,051.79 and 58,337.80

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Solution

The fourth proportional to 103,655.46, 143,051.79 and 58,337.80 is: 80,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,655.46 : 143,051.79 = 58,337.80 : x
  2. Step 2: Convert to fraction form
    103,655.46/143,051.79 = 58,337.80/x
  3. Step 3: Cross multiply
    103,655.46x = 143,051.79 × 58,337.80
  4. Step 4: Simplify right side
    103,655.46x = 8,345,326,714.66
  5. Step 5: Solve for x
    x = 8,345,326,714.66/103,655.46
  6. Step 6: Final answer
    x = 80,510.25

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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.