Home / 163,509.95-245,265.04-45,181.40

Finding the Fourth Proportional to 163,509.95, 245,265.04 and 45,181.40

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Solution

The fourth proportional to 163,509.95, 245,265.04 and 45,181.40 is: 67,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,509.95 : 245,265.04 = 45,181.40 : x
  2. Step 2: Convert to fraction form
    163,509.95/245,265.04 = 45,181.40/x
  3. Step 3: Cross multiply
    163,509.95x = 245,265.04 × 45,181.40
  4. Step 4: Simplify right side
    163,509.95x = 11,081,418,378.47
  5. Step 5: Solve for x
    x = 11,081,418,378.47/163,509.95
  6. Step 6: Final answer
    x = 67,772.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.