Home / 153,928.54-212,419.36-85,946.66

Finding the Fourth Proportional to 153,928.54, 212,419.36 and 85,946.66

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Solution

The fourth proportional to 153,928.54, 212,419.36 and 85,946.66 is: 118,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,928.54 : 212,419.36 = 85,946.66 : x
  2. Step 2: Convert to fraction form
    153,928.54/212,419.36 = 85,946.66/x
  3. Step 3: Cross multiply
    153,928.54x = 212,419.36 × 85,946.66
  4. Step 4: Simplify right side
    153,928.54x = 18,256,734,511.34
  5. Step 5: Solve for x
    x = 18,256,734,511.34/153,928.54
  6. Step 6: Final answer
    x = 118,605.26

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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.