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Finding the Fourth Proportional to 173,973.60, 260,960.40 and 85,400.10

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Solution

The fourth proportional to 173,973.60, 260,960.40 and 85,400.10 is: 128,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,973.60 : 260,960.40 = 85,400.10 : x
  2. Step 2: Convert to fraction form
    173,973.60/260,960.40 = 85,400.10/x
  3. Step 3: Cross multiply
    173,973.60x = 260,960.40 × 85,400.10
  4. Step 4: Simplify right side
    173,973.60x = 22,286,044,256.04
  5. Step 5: Solve for x
    x = 22,286,044,256.04/173,973.60
  6. Step 6: Final answer
    x = 128,100.15

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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.