Home / 145,542.18-200,875.80-91,119.66

Finding the Fourth Proportional to 145,542.18, 200,875.80 and 91,119.66

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Solution

The fourth proportional to 145,542.18, 200,875.80 and 91,119.66 is: 125,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542.18 : 200,875.80 = 91,119.66 : x
  2. Step 2: Convert to fraction form
    145,542.18/200,875.80 = 91,119.66/x
  3. Step 3: Cross multiply
    145,542.18x = 200,875.80 × 91,119.66
  4. Step 4: Simplify right side
    145,542.18x = 18,303,734,598.23
  5. Step 5: Solve for x
    x = 18,303,734,598.23/145,542.18
  6. Step 6: Final answer
    x = 125,762.41

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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.