Home / 103,113.62-142,308.60-57,803.84

Finding the Fourth Proportional to 103,113.62, 142,308.60 and 57,803.84

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Solution

The fourth proportional to 103,113.62, 142,308.60 and 57,803.84 is: 79,775.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,113.62 : 142,308.60 = 57,803.84 : x
  2. Step 2: Convert to fraction form
    103,113.62/142,308.60 = 57,803.84/x
  3. Step 3: Cross multiply
    103,113.62x = 142,308.60 × 57,803.84
  4. Step 4: Simplify right side
    103,113.62x = 8,225,983,545.02
  5. Step 5: Solve for x
    x = 8,225,983,545.02/103,113.62
  6. Step 6: Final answer
    x = 79,775.92

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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.