Home / 152,179.67-210,075.20-90,947.46

Finding the Fourth Proportional to 152,179.67, 210,075.20 and 90,947.46

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Solution

The fourth proportional to 152,179.67, 210,075.20 and 90,947.46 is: 125,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,179.67 : 210,075.20 = 90,947.46 : x
  2. Step 2: Convert to fraction form
    152,179.67/210,075.20 = 90,947.46/x
  3. Step 3: Cross multiply
    152,179.67x = 210,075.20 × 90,947.46
  4. Step 4: Simplify right side
    152,179.67x = 19,105,806,523.09
  5. Step 5: Solve for x
    x = 19,105,806,523.09/152,179.67
  6. Step 6: Final answer
    x = 125,547.69

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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.