Home / 163,395.90-245,118.75-83,390.18

Finding the Fourth Proportional to 163,395.90, 245,118.75 and 83,390.18

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Solution

The fourth proportional to 163,395.90, 245,118.75 and 83,390.18 is: 125,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,395.90 : 245,118.75 = 83,390.18 : x
  2. Step 2: Convert to fraction form
    163,395.90/245,118.75 = 83,390.18/x
  3. Step 3: Cross multiply
    163,395.90x = 245,118.75 × 83,390.18
  4. Step 4: Simplify right side
    163,395.90x = 20,440,495,458.28
  5. Step 5: Solve for x
    x = 20,440,495,458.28/163,395.90
  6. Step 6: Final answer
    x = 125,097.97

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1.5x scale

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.