Home / 118,538.40-163,587.40-64,820.24

Finding the Fourth Proportional to 118,538.40, 163,587.40 and 64,820.24

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Solution

The fourth proportional to 118,538.40, 163,587.40 and 64,820.24 is: 89,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,538.40 : 163,587.40 = 64,820.24 : x
  2. Step 2: Convert to fraction form
    118,538.40/163,587.40 = 64,820.24/x
  3. Step 3: Cross multiply
    118,538.40x = 163,587.40 × 64,820.24
  4. Step 4: Simplify right side
    118,538.40x = 10,603,774,528.98
  5. Step 5: Solve for x
    x = 10,603,774,528.98/118,538.40
  6. Step 6: Final answer
    x = 89,454.34

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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.