Home / 103,065.04-142,241.22-57,750.40

Finding the Fourth Proportional to 103,065.04, 142,241.22 and 57,750.40

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Solution

The fourth proportional to 103,065.04, 142,241.22 and 57,750.40 is: 79,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,065.04 : 142,241.22 = 57,750.40 : x
  2. Step 2: Convert to fraction form
    103,065.04/142,241.22 = 57,750.40/x
  3. Step 3: Cross multiply
    103,065.04x = 142,241.22 × 57,750.40
  4. Step 4: Simplify right side
    103,065.04x = 8,214,487,351.49
  5. Step 5: Solve for x
    x = 8,214,487,351.49/103,065.04
  6. Step 6: Final answer
    x = 79,701.98

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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.