Home / 153,973.90-212,473.40-85,060.32

Finding the Fourth Proportional to 153,973.90, 212,473.40 and 85,060.32

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Solution

The fourth proportional to 153,973.90, 212,473.40 and 85,060.32 is: 117,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,973.90 : 212,473.40 = 85,060.32 : x
  2. Step 2: Convert to fraction form
    153,973.90/212,473.40 = 85,060.32/x
  3. Step 3: Cross multiply
    153,973.90x = 212,473.40 × 85,060.32
  4. Step 4: Simplify right side
    153,973.90x = 18,073,055,395.49
  5. Step 5: Solve for x
    x = 18,073,055,395.49/153,973.90
  6. Step 6: Final answer
    x = 117,377.40

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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.