Home / 130,770.16-180,466.32-74,190.04

Finding the Fourth Proportional to 130,770.16, 180,466.32 and 74,190.04

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Solution

The fourth proportional to 130,770.16, 180,466.32 and 74,190.04 is: 102,384.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,770.16 : 180,466.32 = 74,190.04 : x
  2. Step 2: Convert to fraction form
    130,770.16/180,466.32 = 74,190.04/x
  3. Step 3: Cross multiply
    130,770.16x = 180,466.32 × 74,190.04
  4. Step 4: Simplify right side
    130,770.16x = 13,388,803,499.45
  5. Step 5: Solve for x
    x = 13,388,803,499.45/130,770.16
  6. Step 6: Final answer
    x = 102,384.24

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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.