Home / 118,400.21-163,395.50-70,681.26

Finding the Fourth Proportional to 118,400.21, 163,395.50 and 70,681.26

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Solution

The fourth proportional to 118,400.21, 163,395.50 and 70,681.26 is: 97,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,400.21 : 163,395.50 = 70,681.26 : x
  2. Step 2: Convert to fraction form
    118,400.21/163,395.50 = 70,681.26/x
  3. Step 3: Cross multiply
    118,400.21x = 163,395.50 × 70,681.26
  4. Step 4: Simplify right side
    118,400.21x = 11,548,999,464.92
  5. Step 5: Solve for x
    x = 11,548,999,464.92/118,400.21
  6. Step 6: Final answer
    x = 97,542.06

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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.