Home / 131,355.47-181,271.93-74,770.49

Finding the Fourth Proportional to 131,355.47, 181,271.93 and 74,770.49

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Solution

The fourth proportional to 131,355.47, 181,271.93 and 74,770.49 is: 103,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,355.47 : 181,271.93 = 74,770.49 : x
  2. Step 2: Convert to fraction form
    131,355.47/181,271.93 = 74,770.49/x
  3. Step 3: Cross multiply
    131,355.47x = 181,271.93 × 74,770.49
  4. Step 4: Simplify right side
    131,355.47x = 13,553,791,108.67
  5. Step 5: Solve for x
    x = 13,553,791,108.67/131,355.47
  6. Step 6: Final answer
    x = 103,184.06

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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.