Home / 103,132.23-142,332.56-57,810.30

Finding the Fourth Proportional to 103,132.23, 142,332.56 and 57,810.30

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Solution

The fourth proportional to 103,132.23, 142,332.56 and 57,810.30 is: 79,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,132.23 : 142,332.56 = 57,810.30 : x
  2. Step 2: Convert to fraction form
    103,132.23/142,332.56 = 57,810.30/x
  3. Step 3: Cross multiply
    103,132.23x = 142,332.56 × 57,810.30
  4. Step 4: Simplify right side
    103,132.23x = 8,228,287,993.37
  5. Step 5: Solve for x
    x = 8,228,287,993.37/103,132.23
  6. Step 6: Final answer
    x = 79,783.87

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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.