Home / 231,130.48-318,967.32-130,534.96

Finding the Fourth Proportional to 231,130.48, 318,967.32 and 130,534.96

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Solution

The fourth proportional to 231,130.48, 318,967.32 and 130,534.96 is: 180,142.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,130.48 : 318,967.32 = 130,534.96 : x
  2. Step 2: Convert to fraction form
    231,130.48/318,967.32 = 130,534.96/x
  3. Step 3: Cross multiply
    231,130.48x = 318,967.32 × 130,534.96
  4. Step 4: Simplify right side
    231,130.48x = 41,636,386,357.51
  5. Step 5: Solve for x
    x = 41,636,386,357.51/231,130.48
  6. Step 6: Final answer
    x = 180,142.34

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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.