Home / 103,631.19-143,000.84-58,308.18

Finding the Fourth Proportional to 103,631.19, 143,000.84 and 58,308.18

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Solution

The fourth proportional to 103,631.19, 143,000.84 and 58,308.18 is: 80,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.19 : 143,000.84 = 58,308.18 : x
  2. Step 2: Convert to fraction form
    103,631.19/143,000.84 = 58,308.18/x
  3. Step 3: Cross multiply
    103,631.19x = 143,000.84 × 58,308.18
  4. Step 4: Simplify right side
    103,631.19x = 8,338,118,718.87
  5. Step 5: Solve for x
    x = 8,338,118,718.87/103,631.19
  6. Step 6: Final answer
    x = 80,459.55

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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.