Home / 102,220.89-153,275.71-35,643.21

Finding the Fourth Proportional to 102,220.89, 153,275.71 and 35,643.21

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Solution

The fourth proportional to 102,220.89, 153,275.71 and 35,643.21 is: 53,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,220.89 : 153,275.71 = 35,643.21 : x
  2. Step 2: Convert to fraction form
    102,220.89/153,275.71 = 35,643.21/x
  3. Step 3: Cross multiply
    102,220.89x = 153,275.71 × 35,643.21
  4. Step 4: Simplify right side
    102,220.89x = 5,463,238,319.43
  5. Step 5: Solve for x
    x = 5,463,238,319.43/102,220.89
  6. Step 6: Final answer
    x = 53,445.42

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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.