Home / 105,677.40-145,834.08-57,932.76

Finding the Fourth Proportional to 105,677.40, 145,834.08 and 57,932.76

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Solution

The fourth proportional to 105,677.40, 145,834.08 and 57,932.76 is: 79,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,677.40 : 145,834.08 = 57,932.76 : x
  2. Step 2: Convert to fraction form
    105,677.40/145,834.08 = 57,932.76/x
  3. Step 3: Cross multiply
    105,677.40x = 145,834.08 × 57,932.76
  4. Step 4: Simplify right side
    105,677.40x = 8,448,570,756.46
  5. Step 5: Solve for x
    x = 8,448,570,756.46/105,677.40
  6. Step 6: Final answer
    x = 79,946.81

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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.