Home / 208,014.01-286,968.16-121,929.36

Finding the Fourth Proportional to 208,014.01, 286,968.16 and 121,929.36

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Solution

The fourth proportional to 208,014.01, 286,968.16 and 121,929.36 is: 168,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,014.01 : 286,968.16 = 121,929.36 : x
  2. Step 2: Convert to fraction form
    208,014.01/286,968.16 = 121,929.36/x
  3. Step 3: Cross multiply
    208,014.01x = 286,968.16 × 121,929.36
  4. Step 4: Simplify right side
    208,014.01x = 34,989,844,089.18
  5. Step 5: Solve for x
    x = 34,989,844,089.18/208,014.01
  6. Step 6: Final answer
    x = 168,209.07

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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.