Home / 105,299.02-145,312.76-57,552.40

Finding the Fourth Proportional to 105,299.02, 145,312.76 and 57,552.40

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Solution

The fourth proportional to 105,299.02, 145,312.76 and 57,552.40 is: 79,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,299.02 : 145,312.76 = 57,552.40 : x
  2. Step 2: Convert to fraction form
    105,299.02/145,312.76 = 57,552.40/x
  3. Step 3: Cross multiply
    105,299.02x = 145,312.76 × 57,552.40
  4. Step 4: Simplify right side
    105,299.02x = 8,363,097,074.30
  5. Step 5: Solve for x
    x = 8,363,097,074.30/105,299.02
  6. Step 6: Final answer
    x = 79,422.37

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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.