Home / 216,880.07-299,291.56-121,386.74

Finding the Fourth Proportional to 216,880.07, 299,291.56 and 121,386.74

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Solution

The fourth proportional to 216,880.07, 299,291.56 and 121,386.74 is: 167,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,880.07 : 299,291.56 = 121,386.74 : x
  2. Step 2: Convert to fraction form
    216,880.07/299,291.56 = 121,386.74/x
  3. Step 3: Cross multiply
    216,880.07x = 299,291.56 × 121,386.74
  4. Step 4: Simplify right side
    216,880.07x = 36,330,024,977.99
  5. Step 5: Solve for x
    x = 36,330,024,977.99/216,880.07
  6. Step 6: Final answer
    x = 167,512.05

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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.