Home / 118,421.53-163,421.75-63,973.72

Finding the Fourth Proportional to 118,421.53, 163,421.75 and 63,973.72

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Solution

The fourth proportional to 118,421.53, 163,421.75 and 63,973.72 is: 88,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,421.53 : 163,421.75 = 63,973.72 : x
  2. Step 2: Convert to fraction form
    118,421.53/163,421.75 = 63,973.72/x
  3. Step 3: Cross multiply
    118,421.53x = 163,421.75 × 63,973.72
  4. Step 4: Simplify right side
    118,421.53x = 10,454,697,276.41
  5. Step 5: Solve for x
    x = 10,454,697,276.41/118,421.53
  6. Step 6: Final answer
    x = 88,283.75

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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.