Home / 131,389.14-181,316.94-70,959.78

Finding the Fourth Proportional to 131,389.14, 181,316.94 and 70,959.78

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Solution

The fourth proportional to 131,389.14, 181,316.94 and 70,959.78 is: 97,924.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,389.14 : 181,316.94 = 70,959.78 : x
  2. Step 2: Convert to fraction form
    131,389.14/181,316.94 = 70,959.78/x
  3. Step 3: Cross multiply
    131,389.14x = 181,316.94 × 70,959.78
  4. Step 4: Simplify right side
    131,389.14x = 12,866,210,172.67
  5. Step 5: Solve for x
    x = 12,866,210,172.67/131,389.14
  6. Step 6: Final answer
    x = 97,924.46

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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.