Home / 103,641.73-143,026.20-58,320.47

Finding the Fourth Proportional to 103,641.73, 143,026.20 and 58,320.47

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Solution

The fourth proportional to 103,641.73, 143,026.20 and 58,320.47 is: 80,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,641.73 : 143,026.20 = 58,320.47 : x
  2. Step 2: Convert to fraction form
    103,641.73/143,026.20 = 58,320.47/x
  3. Step 3: Cross multiply
    103,641.73x = 143,026.20 × 58,320.47
  4. Step 4: Simplify right side
    103,641.73x = 8,341,355,563.88
  5. Step 5: Solve for x
    x = 8,341,355,563.88/103,641.73
  6. Step 6: Final answer
    x = 80,482.60

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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.