Home / 105,690.45-145,854.02-60,374.43

Finding the Fourth Proportional to 105,690.45, 145,854.02 and 60,374.43

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Solution

The fourth proportional to 105,690.45, 145,854.02 and 60,374.43 is: 83,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,690.45 : 145,854.02 = 60,374.43 : x
  2. Step 2: Convert to fraction form
    105,690.45/145,854.02 = 60,374.43/x
  3. Step 3: Cross multiply
    105,690.45x = 145,854.02 × 60,374.43
  4. Step 4: Simplify right side
    105,690.45x = 8,805,853,018.84
  5. Step 5: Solve for x
    x = 8,805,853,018.84/105,690.45
  6. Step 6: Final answer
    x = 83,317.40

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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.