Home / 153,929.14-212,426.68-85,945.03

Finding the Fourth Proportional to 153,929.14, 212,426.68 and 85,945.03

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Solution

The fourth proportional to 153,929.14, 212,426.68 and 85,945.03 is: 118,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,929.14 : 212,426.68 = 85,945.03 : x
  2. Step 2: Convert to fraction form
    153,929.14/212,426.68 = 85,945.03/x
  3. Step 3: Cross multiply
    153,929.14x = 212,426.68 × 85,945.03
  4. Step 4: Simplify right side
    153,929.14x = 18,257,017,385.40
  5. Step 5: Solve for x
    x = 18,257,017,385.40/153,929.14
  6. Step 6: Final answer
    x = 118,606.64

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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.