Home / 156,980.23-235,478.52-51,807.40

Finding the Fourth Proportional to 156,980.23, 235,478.52 and 51,807.40

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Solution

The fourth proportional to 156,980.23, 235,478.52 and 51,807.40 is: 77,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.23 : 235,478.52 = 51,807.40 : x
  2. Step 2: Convert to fraction form
    156,980.23/235,478.52 = 51,807.40/x
  3. Step 3: Cross multiply
    156,980.23x = 235,478.52 × 51,807.40
  4. Step 4: Simplify right side
    156,980.23x = 12,199,529,618.01
  5. Step 5: Solve for x
    x = 12,199,529,618.01/156,980.23
  6. Step 6: Final answer
    x = 77,713.80

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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.