Home / 152,778.90-210,860.25-89,116.74

Finding the Fourth Proportional to 152,778.90, 210,860.25 and 89,116.74

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Solution

The fourth proportional to 152,778.90, 210,860.25 and 89,116.74 is: 122,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,778.90 : 210,860.25 = 89,116.74 : x
  2. Step 2: Convert to fraction form
    152,778.90/210,860.25 = 89,116.74/x
  3. Step 3: Cross multiply
    152,778.90x = 210,860.25 × 89,116.74
  4. Step 4: Simplify right side
    152,778.90x = 18,791,178,075.59
  5. Step 5: Solve for x
    x = 18,791,178,075.59/152,778.90
  6. Step 6: Final answer
    x = 122,995.90

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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.