Home / 105,038.43-144,951.35-57,290.75

Finding the Fourth Proportional to 105,038.43, 144,951.35 and 57,290.75

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Solution

The fourth proportional to 105,038.43, 144,951.35 and 57,290.75 is: 79,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,038.43 : 144,951.35 = 57,290.75 : x
  2. Step 2: Convert to fraction form
    105,038.43/144,951.35 = 57,290.75/x
  3. Step 3: Cross multiply
    105,038.43x = 144,951.35 × 57,290.75
  4. Step 4: Simplify right side
    105,038.43x = 8,304,371,555.01
  5. Step 5: Solve for x
    x = 8,304,371,555.01/105,038.43
  6. Step 6: Final answer
    x = 79,060.32

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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.