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Finding the Fourth Proportional to 113,655.80, 170,410.80 and 47,122.40

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Solution

The fourth proportional to 113,655.80, 170,410.80 and 47,122.40 is: 70,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,655.80 : 170,410.80 = 47,122.40 : x
  2. Step 2: Convert to fraction form
    113,655.80/170,410.80 = 47,122.40/x
  3. Step 3: Cross multiply
    113,655.80x = 170,410.80 × 47,122.40
  4. Step 4: Simplify right side
    113,655.80x = 8,030,165,881.92
  5. Step 5: Solve for x
    x = 8,030,165,881.92/113,655.80
  6. Step 6: Final answer
    x = 70,653.38

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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.