Home / 153,901.24-212,357.40-85,914.70

Finding the Fourth Proportional to 153,901.24, 212,357.40 and 85,914.70

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Solution

The fourth proportional to 153,901.24, 212,357.40 and 85,914.70 is: 118,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,901.24 : 212,357.40 = 85,914.70 : x
  2. Step 2: Convert to fraction form
    153,901.24/212,357.40 = 85,914.70/x
  3. Step 3: Cross multiply
    153,901.24x = 212,357.40 × 85,914.70
  4. Step 4: Simplify right side
    153,901.24x = 18,244,622,313.78
  5. Step 5: Solve for x
    x = 18,244,622,313.78/153,901.24
  6. Step 6: Final answer
    x = 118,547.60

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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.