Home / 115,498.90-173,248.35-103,689.10

Finding the Fourth Proportional to 115,498.90, 173,248.35 and 103,689.10

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Solution

The fourth proportional to 115,498.90, 173,248.35 and 103,689.10 is: 155,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,498.90 : 173,248.35 = 103,689.10 : x
  2. Step 2: Convert to fraction form
    115,498.90/173,248.35 = 103,689.10/x
  3. Step 3: Cross multiply
    115,498.90x = 173,248.35 × 103,689.10
  4. Step 4: Simplify right side
    115,498.90x = 17,963,965,487.99
  5. Step 5: Solve for x
    x = 17,963,965,487.99/115,498.90
  6. Step 6: Final answer
    x = 155,533.65

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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.