Home / 170,700.50-256,075.08-90,717.62

Finding the Fourth Proportional to 170,700.50, 256,075.08 and 90,717.62

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Solution

The fourth proportional to 170,700.50, 256,075.08 and 90,717.62 is: 136,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,700.50 : 256,075.08 = 90,717.62 : x
  2. Step 2: Convert to fraction form
    170,700.50/256,075.08 = 90,717.62/x
  3. Step 3: Cross multiply
    170,700.50x = 256,075.08 × 90,717.62
  4. Step 4: Simplify right side
    170,700.50x = 23,230,521,798.91
  5. Step 5: Solve for x
    x = 23,230,521,798.91/170,700.50
  6. Step 6: Final answer
    x = 136,089.36

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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.