Home / 145,504.04-200,823.15-91,081.55

Finding the Fourth Proportional to 145,504.04, 200,823.15 and 91,081.55

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Solution

The fourth proportional to 145,504.04, 200,823.15 and 91,081.55 is: 125,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,504.04 : 200,823.15 = 91,081.55 : x
  2. Step 2: Convert to fraction form
    145,504.04/200,823.15 = 91,081.55/x
  3. Step 3: Cross multiply
    145,504.04x = 200,823.15 × 91,081.55
  4. Step 4: Simplify right side
    145,504.04x = 18,291,282,773.77
  5. Step 5: Solve for x
    x = 18,291,282,773.77/145,504.04
  6. Step 6: Final answer
    x = 125,709.80

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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.