Home / 209,725.04-289,483.80-142,695.92

Finding the Fourth Proportional to 209,725.04, 289,483.80 and 142,695.92

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Solution

The fourth proportional to 209,725.04, 289,483.80 and 142,695.92 is: 196,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,725.04 : 289,483.80 = 142,695.92 : x
  2. Step 2: Convert to fraction form
    209,725.04/289,483.80 = 142,695.92/x
  3. Step 3: Cross multiply
    209,725.04x = 289,483.80 × 142,695.92
  4. Step 4: Simplify right side
    209,725.04x = 41,308,157,166.10
  5. Step 5: Solve for x
    x = 41,308,157,166.10/209,725.04
  6. Step 6: Final answer
    x = 196,963.40

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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.