Home / 210,192.30-315,397.80-91,875.60

Finding the Fourth Proportional to 210,192.30, 315,397.80 and 91,875.60

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Solution

The fourth proportional to 210,192.30, 315,397.80 and 91,875.60 is: 137,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,192.30 : 315,397.80 = 91,875.60 : x
  2. Step 2: Convert to fraction form
    210,192.30/315,397.80 = 91,875.60/x
  3. Step 3: Cross multiply
    210,192.30x = 315,397.80 × 91,875.60
  4. Step 4: Simplify right side
    210,192.30x = 28,977,362,113.68
  5. Step 5: Solve for x
    x = 28,977,362,113.68/210,192.30
  6. Step 6: Final answer
    x = 137,861.20

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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.