Home / 105,461.07-157,940.01-67,390.68

Finding the Fourth Proportional to 105,461.07, 157,940.01 and 67,390.68

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Solution

The fourth proportional to 105,461.07, 157,940.01 and 67,390.68 is: 100,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.07 : 157,940.01 = 67,390.68 : x
  2. Step 2: Convert to fraction form
    105,461.07/157,940.01 = 67,390.68/x
  3. Step 3: Cross multiply
    105,461.07x = 157,940.01 × 67,390.68
  4. Step 4: Simplify right side
    105,461.07x = 10,643,684,673.11
  5. Step 5: Solve for x
    x = 10,643,684,673.11/105,461.07
  6. Step 6: Final answer
    x = 100,925.25

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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.