Home / 163,476-243,783.45-161,981.28

Finding the Fourth Proportional to 163,476, 243,783.45 and 161,981.28

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Solution

The fourth proportional to 163,476, 243,783.45 and 161,981.28 is: 241,554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,476 : 243,783.45 = 161,981.28 : x
  2. Step 2: Convert to fraction form
    163,476/243,783.45 = 161,981.28/x
  3. Step 3: Cross multiply
    163,476x = 243,783.45 × 161,981.28
  4. Step 4: Simplify right side
    163,476x = 39,488,355,273.82
  5. Step 5: Solve for x
    x = 39,488,355,273.82/163,476
  6. Step 6: Final answer
    x = 241,554.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.