Home / 153,712.05-212,086.48-93,281.32

Finding the Fourth Proportional to 153,712.05, 212,086.48 and 93,281.32

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Solution

The fourth proportional to 153,712.05, 212,086.48 and 93,281.32 is: 128,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,712.05 : 212,086.48 = 93,281.32 : x
  2. Step 2: Convert to fraction form
    153,712.05/212,086.48 = 93,281.32/x
  3. Step 3: Cross multiply
    153,712.05x = 212,086.48 × 93,281.32
  4. Step 4: Simplify right side
    153,712.05x = 19,783,706,808.55
  5. Step 5: Solve for x
    x = 19,783,706,808.55/153,712.05
  6. Step 6: Final answer
    x = 128,706.28

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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.