Home / 153,606.32-211,981.21-89,938.16

Finding the Fourth Proportional to 153,606.32, 211,981.21 and 89,938.16

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Solution

The fourth proportional to 153,606.32, 211,981.21 and 89,938.16 is: 124,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,606.32 : 211,981.21 = 89,938.16 : x
  2. Step 2: Convert to fraction form
    153,606.32/211,981.21 = 89,938.16/x
  3. Step 3: Cross multiply
    153,606.32x = 211,981.21 × 89,938.16
  4. Step 4: Simplify right side
    153,606.32x = 19,065,199,981.97
  5. Step 5: Solve for x
    x = 19,065,199,981.97/153,606.32
  6. Step 6: Final answer
    x = 124,117.29

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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.