Home / 103,615.30-155,346.15-70,252.10

Finding the Fourth Proportional to 103,615.30, 155,346.15 and 70,252.10

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Solution

The fourth proportional to 103,615.30, 155,346.15 and 70,252.10 is: 105,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.30 : 155,346.15 = 70,252.10 : x
  2. Step 2: Convert to fraction form
    103,615.30/155,346.15 = 70,252.10/x
  3. Step 3: Cross multiply
    103,615.30x = 155,346.15 × 70,252.10
  4. Step 4: Simplify right side
    103,615.30x = 10,913,393,264.42
  5. Step 5: Solve for x
    x = 10,913,393,264.42/103,615.30
  6. Step 6: Final answer
    x = 105,326.08

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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.