Home / 115,127.63-158,881.04-64,140.34

Finding the Fourth Proportional to 115,127.63, 158,881.04 and 64,140.34

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Solution

The fourth proportional to 115,127.63, 158,881.04 and 64,140.34 is: 88,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,127.63 : 158,881.04 = 64,140.34 : x
  2. Step 2: Convert to fraction form
    115,127.63/158,881.04 = 64,140.34/x
  3. Step 3: Cross multiply
    115,127.63x = 158,881.04 × 64,140.34
  4. Step 4: Simplify right side
    115,127.63x = 10,190,684,106.47
  5. Step 5: Solve for x
    x = 10,190,684,106.47/115,127.63
  6. Step 6: Final answer
    x = 88,516.41

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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.