Home / 130,970.53-180,740.60-74,382.31

Finding the Fourth Proportional to 130,970.53, 180,740.60 and 74,382.31

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Solution

The fourth proportional to 130,970.53, 180,740.60 and 74,382.31 is: 102,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,970.53 : 180,740.60 = 74,382.31 : x
  2. Step 2: Convert to fraction form
    130,970.53/180,740.60 = 74,382.31/x
  3. Step 3: Cross multiply
    130,970.53x = 180,740.60 × 74,382.31
  4. Step 4: Simplify right side
    130,970.53x = 13,443,903,338.79
  5. Step 5: Solve for x
    x = 13,443,903,338.79/130,970.53
  6. Step 6: Final answer
    x = 102,648.31

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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.