Home / 170,323.95-255,515.94-70,428.17

Finding the Fourth Proportional to 170,323.95, 255,515.94 and 70,428.17

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Solution

The fourth proportional to 170,323.95, 255,515.94 and 70,428.17 is: 105,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,323.95 : 255,515.94 = 70,428.17 : x
  2. Step 2: Convert to fraction form
    170,323.95/255,515.94 = 70,428.17/x
  3. Step 3: Cross multiply
    170,323.95x = 255,515.94 × 70,428.17
  4. Step 4: Simplify right side
    170,323.95x = 17,995,518,782.45
  5. Step 5: Solve for x
    x = 17,995,518,782.45/170,323.95
  6. Step 6: Final answer
    x = 105,654.66

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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.