Home / 115,938.24-159,971.64-70,585.98

Finding the Fourth Proportional to 115,938.24, 159,971.64 and 70,585.98

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Solution

The fourth proportional to 115,938.24, 159,971.64 and 70,585.98 is: 97,394.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,938.24 : 159,971.64 = 70,585.98 : x
  2. Step 2: Convert to fraction form
    115,938.24/159,971.64 = 70,585.98/x
  3. Step 3: Cross multiply
    115,938.24x = 159,971.64 × 70,585.98
  4. Step 4: Simplify right side
    115,938.24x = 11,291,754,981.61
  5. Step 5: Solve for x
    x = 11,291,754,981.61/115,938.24
  6. Step 6: Final answer
    x = 97,394.57

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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.