Home / 101,455.07-152,083.68-42,307.64

Finding the Fourth Proportional to 101,455.07, 152,083.68 and 42,307.64

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Solution

The fourth proportional to 101,455.07, 152,083.68 and 42,307.64 is: 63,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,455.07 : 152,083.68 = 42,307.64 : x
  2. Step 2: Convert to fraction form
    101,455.07/152,083.68 = 42,307.64/x
  3. Step 3: Cross multiply
    101,455.07x = 152,083.68 × 42,307.64
  4. Step 4: Simplify right side
    101,455.07x = 6,434,301,583.32
  5. Step 5: Solve for x
    x = 6,434,301,583.32/101,455.07
  6. Step 6: Final answer
    x = 63,420.21

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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.