Home / 105,789.40-145,989.36-60,468.35

Finding the Fourth Proportional to 105,789.40, 145,989.36 and 60,468.35

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Solution

The fourth proportional to 105,789.40, 145,989.36 and 60,468.35 is: 83,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,789.40 : 145,989.36 = 60,468.35 : x
  2. Step 2: Convert to fraction form
    105,789.40/145,989.36 = 60,468.35/x
  3. Step 3: Cross multiply
    105,789.40x = 145,989.36 × 60,468.35
  4. Step 4: Simplify right side
    105,789.40x = 8,827,735,716.76
  5. Step 5: Solve for x
    x = 8,827,735,716.76/105,789.40
  6. Step 6: Final answer
    x = 83,446.32

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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.