Home / 129,365.24-178,501.82-118,901.18

Finding the Fourth Proportional to 129,365.24, 178,501.82 and 118,901.18

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Solution

The fourth proportional to 129,365.24, 178,501.82 and 118,901.18 is: 164,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,365.24 : 178,501.82 = 118,901.18 : x
  2. Step 2: Convert to fraction form
    129,365.24/178,501.82 = 118,901.18/x
  3. Step 3: Cross multiply
    129,365.24x = 178,501.82 × 118,901.18
  4. Step 4: Simplify right side
    129,365.24x = 21,224,077,030.15
  5. Step 5: Solve for x
    x = 21,224,077,030.15/129,365.24
  6. Step 6: Final answer
    x = 164,063.21

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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.