Home / 131,667.19-181,700.42-71,237.63

Finding the Fourth Proportional to 131,667.19, 181,700.42 and 71,237.63

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Solution

The fourth proportional to 131,667.19, 181,700.42 and 71,237.63 is: 98,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,667.19 : 181,700.42 = 71,237.63 : x
  2. Step 2: Convert to fraction form
    131,667.19/181,700.42 = 71,237.63/x
  3. Step 3: Cross multiply
    131,667.19x = 181,700.42 × 71,237.63
  4. Step 4: Simplify right side
    131,667.19x = 12,943,907,388.87
  5. Step 5: Solve for x
    x = 12,943,907,388.87/131,667.19
  6. Step 6: Final answer
    x = 98,307.77

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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.