Home / 130,973.54-180,744.74-74,385.32

Finding the Fourth Proportional to 130,973.54, 180,744.74 and 74,385.32

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Solution

The fourth proportional to 130,973.54, 180,744.74 and 74,385.32 is: 102,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,973.54 : 180,744.74 = 74,385.32 : x
  2. Step 2: Convert to fraction form
    130,973.54/180,744.74 = 74,385.32/x
  3. Step 3: Cross multiply
    130,973.54x = 180,744.74 × 74,385.32
  4. Step 4: Simplify right side
    130,973.54x = 13,444,755,323.22
  5. Step 5: Solve for x
    x = 13,444,755,323.22/130,973.54
  6. Step 6: Final answer
    x = 102,652.45

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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.