Home / 119,017.36-164,094.51-87,130.90

Finding the Fourth Proportional to 119,017.36, 164,094.51 and 87,130.90

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Solution

The fourth proportional to 119,017.36, 164,094.51 and 87,130.90 is: 120,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,017.36 : 164,094.51 = 87,130.90 : x
  2. Step 2: Convert to fraction form
    119,017.36/164,094.51 = 87,130.90/x
  3. Step 3: Cross multiply
    119,017.36x = 164,094.51 × 87,130.90
  4. Step 4: Simplify right side
    119,017.36x = 14,297,701,931.12
  5. Step 5: Solve for x
    x = 14,297,701,931.12/119,017.36
  6. Step 6: Final answer
    x = 120,131.23

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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.