Home / 153,386.46-211,671.63-85,401.95

Finding the Fourth Proportional to 153,386.46, 211,671.63 and 85,401.95

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Solution

The fourth proportional to 153,386.46, 211,671.63 and 85,401.95 is: 117,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,386.46 : 211,671.63 = 85,401.95 : x
  2. Step 2: Convert to fraction form
    153,386.46/211,671.63 = 85,401.95/x
  3. Step 3: Cross multiply
    153,386.46x = 211,671.63 × 85,401.95
  4. Step 4: Simplify right side
    153,386.46x = 18,077,168,903.32
  5. Step 5: Solve for x
    x = 18,077,168,903.32/153,386.46
  6. Step 6: Final answer
    x = 117,853.75

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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.