Home / 152,733.86-210,812.76-85,687.46

Finding the Fourth Proportional to 152,733.86, 210,812.76 and 85,687.46

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Solution

The fourth proportional to 152,733.86, 210,812.76 and 85,687.46 is: 118,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,733.86 : 210,812.76 = 85,687.46 : x
  2. Step 2: Convert to fraction form
    152,733.86/210,812.76 = 85,687.46/x
  3. Step 3: Cross multiply
    152,733.86x = 210,812.76 × 85,687.46
  4. Step 4: Simplify right side
    152,733.86x = 18,064,009,939.99
  5. Step 5: Solve for x
    x = 18,064,009,939.99/152,733.86
  6. Step 6: Final answer
    x = 118,271.15

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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.