Home / 185,945.12-256,547.28-105,359.84

Finding the Fourth Proportional to 185,945.12, 256,547.28 and 105,359.84

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Solution

The fourth proportional to 185,945.12, 256,547.28 and 105,359.84 is: 145,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,945.12 : 256,547.28 = 105,359.84 : x
  2. Step 2: Convert to fraction form
    185,945.12/256,547.28 = 105,359.84/x
  3. Step 3: Cross multiply
    185,945.12x = 256,547.28 × 105,359.84
  4. Step 4: Simplify right side
    185,945.12x = 27,029,780,373.24
  5. Step 5: Solve for x
    x = 27,029,780,373.24/185,945.12
  6. Step 6: Final answer
    x = 145,364.29

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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.