Home / 136,001.55-187,678.40-75,570.63

Finding the Fourth Proportional to 136,001.55, 187,678.40 and 75,570.63

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Solution

The fourth proportional to 136,001.55, 187,678.40 and 75,570.63 is: 104,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,001.55 : 187,678.40 = 75,570.63 : x
  2. Step 2: Convert to fraction form
    136,001.55/187,678.40 = 75,570.63/x
  3. Step 3: Cross multiply
    136,001.55x = 187,678.40 × 75,570.63
  4. Step 4: Simplify right side
    136,001.55x = 14,182,974,547.54
  5. Step 5: Solve for x
    x = 14,182,974,547.54/136,001.55
  6. Step 6: Final answer
    x = 104,285.39

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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.