Home / 163,905.20-245,857.80-161,572.40

Finding the Fourth Proportional to 163,905.20, 245,857.80 and 161,572.40

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Solution

The fourth proportional to 163,905.20, 245,857.80 and 161,572.40 is: 242,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,905.20 : 245,857.80 = 161,572.40 : x
  2. Step 2: Convert to fraction form
    163,905.20/245,857.80 = 161,572.40/x
  3. Step 3: Cross multiply
    163,905.20x = 245,857.80 × 161,572.40
  4. Step 4: Simplify right side
    163,905.20x = 39,723,834,804.72
  5. Step 5: Solve for x
    x = 39,723,834,804.72/163,905.20
  6. Step 6: Final answer
    x = 242,358.60

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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.