Home / 131,152.70-180,985.46-77,455.02

Finding the Fourth Proportional to 131,152.70, 180,985.46 and 77,455.02

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Solution

The fourth proportional to 131,152.70, 180,985.46 and 77,455.02 is: 106,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,152.70 : 180,985.46 = 77,455.02 : x
  2. Step 2: Convert to fraction form
    131,152.70/180,985.46 = 77,455.02/x
  3. Step 3: Cross multiply
    131,152.70x = 180,985.46 × 77,455.02
  4. Step 4: Simplify right side
    131,152.70x = 14,018,232,424.01
  5. Step 5: Solve for x
    x = 14,018,232,424.01/131,152.70
  6. Step 6: Final answer
    x = 106,884.82

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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.