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Finding the Fourth Proportional to 153,970.40, 230,955.60 and 94,872.80

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Solution

The fourth proportional to 153,970.40, 230,955.60 and 94,872.80 is: 142,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,970.40 : 230,955.60 = 94,872.80 : x
  2. Step 2: Convert to fraction form
    153,970.40/230,955.60 = 94,872.80/x
  3. Step 3: Cross multiply
    153,970.40x = 230,955.60 × 94,872.80
  4. Step 4: Simplify right side
    153,970.40x = 21,911,404,447.68
  5. Step 5: Solve for x
    x = 21,911,404,447.68/153,970.40
  6. Step 6: Final answer
    x = 142,309.20

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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.