Home / 130,666.60-180,314.80-74,076.76

Finding the Fourth Proportional to 130,666.60, 180,314.80 and 74,076.76

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Solution

The fourth proportional to 130,666.60, 180,314.80 and 74,076.76 is: 102,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,666.60 : 180,314.80 = 74,076.76 : x
  2. Step 2: Convert to fraction form
    130,666.60/180,314.80 = 74,076.76/x
  3. Step 3: Cross multiply
    130,666.60x = 180,314.80 × 74,076.76
  4. Step 4: Simplify right side
    130,666.60x = 13,357,136,164.05
  5. Step 5: Solve for x
    x = 13,357,136,164.05/130,666.60
  6. Step 6: Final answer
    x = 102,223.03

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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.