Home / 153,670.85-212,068.40-84,768.23

Finding the Fourth Proportional to 153,670.85, 212,068.40 and 84,768.23

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Solution

The fourth proportional to 153,670.85, 212,068.40 and 84,768.23 is: 116,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,670.85 : 212,068.40 = 84,768.23 : x
  2. Step 2: Convert to fraction form
    153,670.85/212,068.40 = 84,768.23/x
  3. Step 3: Cross multiply
    153,670.85x = 212,068.40 × 84,768.23
  4. Step 4: Simplify right side
    153,670.85x = 17,976,661,422.75
  5. Step 5: Solve for x
    x = 17,976,661,422.75/153,670.85
  6. Step 6: Final answer
    x = 116,981.59

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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.