Home / 210,405.12-290,283.84-124,345.92

Finding the Fourth Proportional to 210,405.12, 290,283.84 and 124,345.92

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Solution

The fourth proportional to 210,405.12, 290,283.84 and 124,345.92 is: 171,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,405.12 : 290,283.84 = 124,345.92 : x
  2. Step 2: Convert to fraction form
    210,405.12/290,283.84 = 124,345.92/x
  3. Step 3: Cross multiply
    210,405.12x = 290,283.84 × 124,345.92
  4. Step 4: Simplify right side
    210,405.12x = 36,095,611,145.93
  5. Step 5: Solve for x
    x = 36,095,611,145.93/210,405.12
  6. Step 6: Final answer
    x = 171,552.91

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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.