Home / 189,165.12-261,050.76-103,124.16

Finding the Fourth Proportional to 189,165.12, 261,050.76 and 103,124.16

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Solution

The fourth proportional to 189,165.12, 261,050.76 and 103,124.16 is: 142,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,165.12 : 261,050.76 = 103,124.16 : x
  2. Step 2: Convert to fraction form
    189,165.12/261,050.76 = 103,124.16/x
  3. Step 3: Cross multiply
    189,165.12x = 261,050.76 × 103,124.16
  4. Step 4: Simplify right side
    189,165.12x = 26,920,640,342.36
  5. Step 5: Solve for x
    x = 26,920,640,342.36/189,165.12
  6. Step 6: Final answer
    x = 142,312.92

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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.