Home / 156,971.23-235,465.02-51,798.40

Finding the Fourth Proportional to 156,971.23, 235,465.02 and 51,798.40

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Solution

The fourth proportional to 156,971.23, 235,465.02 and 51,798.40 is: 77,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.23 : 235,465.02 = 51,798.40 : x
  2. Step 2: Convert to fraction form
    156,971.23/235,465.02 = 51,798.40/x
  3. Step 3: Cross multiply
    156,971.23x = 235,465.02 × 51,798.40
  4. Step 4: Simplify right side
    156,971.23x = 12,196,711,291.97
  5. Step 5: Solve for x
    x = 12,196,711,291.97/156,971.23
  6. Step 6: Final answer
    x = 77,700.30

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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.