Home / 189,432.42-261,417.29-103,392.19

Finding the Fourth Proportional to 189,432.42, 261,417.29 and 103,392.19

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Solution

The fourth proportional to 189,432.42, 261,417.29 and 103,392.19 is: 142,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,432.42 : 261,417.29 = 103,392.19 : x
  2. Step 2: Convert to fraction form
    189,432.42/261,417.29 = 103,392.19/x
  3. Step 3: Cross multiply
    189,432.42x = 261,417.29 × 103,392.19
  4. Step 4: Simplify right side
    189,432.42x = 27,028,506,116.97
  5. Step 5: Solve for x
    x = 27,028,506,116.97/189,432.42
  6. Step 6: Final answer
    x = 142,681.52

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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.