Home / 147,707.12-203,830.68-91,117.04

Finding the Fourth Proportional to 147,707.12, 203,830.68 and 91,117.04

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Solution

The fourth proportional to 147,707.12, 203,830.68 and 91,117.04 is: 125,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,707.12 : 203,830.68 = 91,117.04 : x
  2. Step 2: Convert to fraction form
    147,707.12/203,830.68 = 91,117.04/x
  3. Step 3: Cross multiply
    147,707.12x = 203,830.68 × 91,117.04
  4. Step 4: Simplify right side
    147,707.12x = 18,572,448,222.79
  5. Step 5: Solve for x
    x = 18,572,448,222.79/147,707.12
  6. Step 6: Final answer
    x = 125,738.34

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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.