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Finding the Fourth Proportional to 173,077.76, 259,353.12 and 128,495.36

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Solution

The fourth proportional to 173,077.76, 259,353.12 and 128,495.36 is: 192,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,077.76 : 259,353.12 = 128,495.36 : x
  2. Step 2: Convert to fraction form
    173,077.76/259,353.12 = 128,495.36/x
  3. Step 3: Cross multiply
    173,077.76x = 259,353.12 × 128,495.36
  4. Step 4: Simplify right side
    173,077.76x = 33,325,672,521.52
  5. Step 5: Solve for x
    x = 33,325,672,521.52/173,077.76
  6. Step 6: Final answer
    x = 192,547.40

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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.