Home / 118,181.18-163,089.45-64,465.72

Finding the Fourth Proportional to 118,181.18, 163,089.45 and 64,465.72

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Solution

The fourth proportional to 118,181.18, 163,089.45 and 64,465.72 is: 88,962.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,181.18 : 163,089.45 = 64,465.72 : x
  2. Step 2: Convert to fraction form
    118,181.18/163,089.45 = 64,465.72/x
  3. Step 3: Cross multiply
    118,181.18x = 163,089.45 × 64,465.72
  4. Step 4: Simplify right side
    118,181.18x = 10,513,679,328.31
  5. Step 5: Solve for x
    x = 10,513,679,328.31/118,181.18
  6. Step 6: Final answer
    x = 88,962.38

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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.