Home / 218,681.85-301,677.78-127,981.63

Finding the Fourth Proportional to 218,681.85, 301,677.78 and 127,981.63

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Solution

The fourth proportional to 218,681.85, 301,677.78 and 127,981.63 is: 176,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681.85 : 301,677.78 = 127,981.63 : x
  2. Step 2: Convert to fraction form
    218,681.85/301,677.78 = 127,981.63/x
  3. Step 3: Cross multiply
    218,681.85x = 301,677.78 × 127,981.63
  4. Step 4: Simplify right side
    218,681.85x = 38,609,214,019.18
  5. Step 5: Solve for x
    x = 38,609,214,019.18/218,681.85
  6. Step 6: Final answer
    x = 176,554.27

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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.