Home / 103,510.02-155,265.03-82,635.78

Finding the Fourth Proportional to 103,510.02, 155,265.03 and 82,635.78

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Solution

The fourth proportional to 103,510.02, 155,265.03 and 82,635.78 is: 123,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,510.02 : 155,265.03 = 82,635.78 : x
  2. Step 2: Convert to fraction form
    103,510.02/155,265.03 = 82,635.78/x
  3. Step 3: Cross multiply
    103,510.02x = 155,265.03 × 82,635.78
  4. Step 4: Simplify right side
    103,510.02x = 12,830,446,860.77
  5. Step 5: Solve for x
    x = 12,830,446,860.77/103,510.02
  6. Step 6: Final answer
    x = 123,953.67

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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.