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Finding the Fourth Proportional to 89,888.96, 134,832.80 and 70,184

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Solution

The fourth proportional to 89,888.96, 134,832.80 and 70,184 is: 105,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,888.96 : 134,832.80 = 70,184 : x
  2. Step 2: Convert to fraction form
    89,888.96/134,832.80 = 70,184/x
  3. Step 3: Cross multiply
    89,888.96x = 134,832.80 × 70,184
  4. Step 4: Simplify right side
    89,888.96x = 9,463,105,235.20
  5. Step 5: Solve for x
    x = 9,463,105,235.20/89,888.96
  6. Step 6: Final answer
    x = 105,275.50

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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.