Home / 118,642.32-163,712.07-70,886.34

Finding the Fourth Proportional to 118,642.32, 163,712.07 and 70,886.34

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Solution

The fourth proportional to 118,642.32, 163,712.07 and 70,886.34 is: 97,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,642.32 : 163,712.07 = 70,886.34 : x
  2. Step 2: Convert to fraction form
    118,642.32/163,712.07 = 70,886.34/x
  3. Step 3: Cross multiply
    118,642.32x = 163,712.07 × 70,886.34
  4. Step 4: Simplify right side
    118,642.32x = 11,604,949,456.12
  5. Step 5: Solve for x
    x = 11,604,949,456.12/118,642.32
  6. Step 6: Final answer
    x = 97,814.59

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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.