Home / 130,592.80-180,154.02-85,249.81

Finding the Fourth Proportional to 130,592.80, 180,154.02 and 85,249.81

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Solution

The fourth proportional to 130,592.80, 180,154.02 and 85,249.81 is: 117,602.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,592.80 : 180,154.02 = 85,249.81 : x
  2. Step 2: Convert to fraction form
    130,592.80/180,154.02 = 85,249.81/x
  3. Step 3: Cross multiply
    130,592.80x = 180,154.02 × 85,249.81
  4. Step 4: Simplify right side
    130,592.80x = 15,358,095,975.74
  5. Step 5: Solve for x
    x = 15,358,095,975.74/130,592.80
  6. Step 6: Final answer
    x = 117,602.93

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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.