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Finding the Fourth Proportional to 135,955.65, 187,648.82 and 75,547.07

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Solution

The fourth proportional to 135,955.65, 187,648.82 and 75,547.07 is: 104,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,955.65 : 187,648.82 = 75,547.07 : x
  2. Step 2: Convert to fraction form
    135,955.65/187,648.82 = 75,547.07/x
  3. Step 3: Cross multiply
    135,955.65x = 187,648.82 × 75,547.07
  4. Step 4: Simplify right side
    135,955.65x = 14,176,317,223.98
  5. Step 5: Solve for x
    x = 14,176,317,223.98/135,955.65
  6. Step 6: Final answer
    x = 104,271.63

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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.