Home / 123,931.65-171,025.86-70,220.31

Finding the Fourth Proportional to 123,931.65, 171,025.86 and 70,220.31

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Solution

The fourth proportional to 123,931.65, 171,025.86 and 70,220.31 is: 96,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,931.65 : 171,025.86 = 70,220.31 : x
  2. Step 2: Convert to fraction form
    123,931.65/171,025.86 = 70,220.31/x
  3. Step 3: Cross multiply
    123,931.65x = 171,025.86 × 70,220.31
  4. Step 4: Simplify right side
    123,931.65x = 12,009,488,907.22
  5. Step 5: Solve for x
    x = 12,009,488,907.22/123,931.65
  6. Step 6: Final answer
    x = 96,904.13

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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.