Home / 105,545.28-145,645.20-60,225.36

Finding the Fourth Proportional to 105,545.28, 145,645.20 and 60,225.36

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Solution

The fourth proportional to 105,545.28, 145,645.20 and 60,225.36 is: 83,106.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,545.28 : 145,645.20 = 60,225.36 : x
  2. Step 2: Convert to fraction form
    105,545.28/145,645.20 = 60,225.36/x
  3. Step 3: Cross multiply
    105,545.28x = 145,645.20 × 60,225.36
  4. Step 4: Simplify right side
    105,545.28x = 8,771,534,602.27
  5. Step 5: Solve for x
    x = 8,771,534,602.27/105,545.28
  6. Step 6: Final answer
    x = 83,106.84

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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.