Home / 102,420.04-141,259.54-66,621.48

Finding the Fourth Proportional to 102,420.04, 141,259.54 and 66,621.48

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Solution

The fourth proportional to 102,420.04, 141,259.54 and 66,621.48 is: 91,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,420.04 : 141,259.54 = 66,621.48 : x
  2. Step 2: Convert to fraction form
    102,420.04/141,259.54 = 66,621.48/x
  3. Step 3: Cross multiply
    102,420.04x = 141,259.54 × 66,621.48
  4. Step 4: Simplify right side
    102,420.04x = 9,410,919,618.92
  5. Step 5: Solve for x
    x = 9,410,919,618.92/102,420.04
  6. Step 6: Final answer
    x = 91,885.53

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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.