Home / 123,430.40-185,203.20-64,332.80

Finding the Fourth Proportional to 123,430.40, 185,203.20 and 64,332.80

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Solution

The fourth proportional to 123,430.40, 185,203.20 and 64,332.80 is: 96,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430.40 : 185,203.20 = 64,332.80 : x
  2. Step 2: Convert to fraction form
    123,430.40/185,203.20 = 64,332.80/x
  3. Step 3: Cross multiply
    123,430.40x = 185,203.20 × 64,332.80
  4. Step 4: Simplify right side
    123,430.40x = 11,914,640,424.96
  5. Step 5: Solve for x
    x = 11,914,640,424.96/123,430.40
  6. Step 6: Final answer
    x = 96,529.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.