Home / 113,111.20-169,666.80-103,488.40

Finding the Fourth Proportional to 113,111.20, 169,666.80 and 103,488.40

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Solution

The fourth proportional to 113,111.20, 169,666.80 and 103,488.40 is: 155,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,111.20 : 169,666.80 = 103,488.40 : x
  2. Step 2: Convert to fraction form
    113,111.20/169,666.80 = 103,488.40/x
  3. Step 3: Cross multiply
    113,111.20x = 169,666.80 × 103,488.40
  4. Step 4: Simplify right side
    113,111.20x = 17,558,545,665.12
  5. Step 5: Solve for x
    x = 17,558,545,665.12/113,111.20
  6. Step 6: Final answer
    x = 155,232.60

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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.