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Finding the Fourth Proportional to 152,760.50, 210,810.93 and 85,693.94

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Solution

The fourth proportional to 152,760.50, 210,810.93 and 85,693.94 is: 118,258.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,760.50 : 210,810.93 = 85,693.94 : x
  2. Step 2: Convert to fraction form
    152,760.50/210,810.93 = 85,693.94/x
  3. Step 3: Cross multiply
    152,760.50x = 210,810.93 × 85,693.94
  4. Step 4: Simplify right side
    152,760.50x = 18,065,219,186.76
  5. Step 5: Solve for x
    x = 18,065,219,186.76/152,760.50
  6. Step 6: Final answer
    x = 118,258.44

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1.5x scale

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.