Home / 145,055.52-200,166.12-80,528.22

Finding the Fourth Proportional to 145,055.52, 200,166.12 and 80,528.22

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Solution

The fourth proportional to 145,055.52, 200,166.12 and 80,528.22 is: 111,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,055.52 : 200,166.12 = 80,528.22 : x
  2. Step 2: Convert to fraction form
    145,055.52/200,166.12 = 80,528.22/x
  3. Step 3: Cross multiply
    145,055.52x = 200,166.12 × 80,528.22
  4. Step 4: Simplify right side
    145,055.52x = 16,119,021,347.91
  5. Step 5: Solve for x
    x = 16,119,021,347.91/145,055.52
  6. Step 6: Final answer
    x = 111,123.12

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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.