Home / 216,750.23-299,095.04-135,070.91

Finding the Fourth Proportional to 216,750.23, 299,095.04 and 135,070.91

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Solution

The fourth proportional to 216,750.23, 299,095.04 and 135,070.91 is: 186,385.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,750.23 : 299,095.04 = 135,070.91 : x
  2. Step 2: Convert to fraction form
    216,750.23/299,095.04 = 135,070.91/x
  3. Step 3: Cross multiply
    216,750.23x = 299,095.04 × 135,070.91
  4. Step 4: Simplify right side
    216,750.23x = 40,399,038,553.93
  5. Step 5: Solve for x
    x = 40,399,038,553.93/216,750.23
  6. Step 6: Final answer
    x = 186,385.22

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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.