Home / 187,725.48-281,538.84-69,430.68

Finding the Fourth Proportional to 187,725.48, 281,538.84 and 69,430.68

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Solution

The fourth proportional to 187,725.48, 281,538.84 and 69,430.68 is: 104,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,725.48 : 281,538.84 = 69,430.68 : x
  2. Step 2: Convert to fraction form
    187,725.48/281,538.84 = 69,430.68/x
  3. Step 3: Cross multiply
    187,725.48x = 281,538.84 × 69,430.68
  4. Step 4: Simplify right side
    187,725.48x = 19,547,433,107.61
  5. Step 5: Solve for x
    x = 19,547,433,107.61/187,725.48
  6. Step 6: Final answer
    x = 104,127.76

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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.