Home / 158,667.86-218,960.36-86,070.55

Finding the Fourth Proportional to 158,667.86, 218,960.36 and 86,070.55

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Solution

The fourth proportional to 158,667.86, 218,960.36 and 86,070.55 is: 118,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,667.86 : 218,960.36 = 86,070.55 : x
  2. Step 2: Convert to fraction form
    158,667.86/218,960.36 = 86,070.55/x
  3. Step 3: Cross multiply
    158,667.86x = 218,960.36 × 86,070.55
  4. Step 4: Simplify right side
    158,667.86x = 18,846,038,853.11
  5. Step 5: Solve for x
    x = 18,846,038,853.11/158,667.86
  6. Step 6: Final answer
    x = 118,776.66

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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.