Home / 210,222.02-315,145.50-77,071.20

Finding the Fourth Proportional to 210,222.02, 315,145.50 and 77,071.20

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Solution

The fourth proportional to 210,222.02, 315,145.50 and 77,071.20 is: 115,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,222.02 : 315,145.50 = 77,071.20 : x
  2. Step 2: Convert to fraction form
    210,222.02/315,145.50 = 77,071.20/x
  3. Step 3: Cross multiply
    210,222.02x = 315,145.50 × 77,071.20
  4. Step 4: Simplify right side
    210,222.02x = 24,288,641,859.60
  5. Step 5: Solve for x
    x = 24,288,641,859.60/210,222.02
  6. Step 6: Final answer
    x = 115,538.05

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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.