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Finding the Fourth Proportional to 130,398.16, 179,953.74 and 73,808.32

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Solution

The fourth proportional to 130,398.16, 179,953.74 and 73,808.32 is: 101,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,398.16 : 179,953.74 = 73,808.32 : x
  2. Step 2: Convert to fraction form
    130,398.16/179,953.74 = 73,808.32/x
  3. Step 3: Cross multiply
    130,398.16x = 179,953.74 × 73,808.32
  4. Step 4: Simplify right side
    130,398.16x = 13,282,083,227.12
  5. Step 5: Solve for x
    x = 13,282,083,227.12/130,398.16
  6. Step 6: Final answer
    x = 101,857.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.