Home / 125,838.10-173,681.45-72,159.40

Finding the Fourth Proportional to 125,838.10, 173,681.45 and 72,159.40

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Solution

The fourth proportional to 125,838.10, 173,681.45 and 72,159.40 is: 99,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,838.10 : 173,681.45 = 72,159.40 : x
  2. Step 2: Convert to fraction form
    125,838.10/173,681.45 = 72,159.40/x
  3. Step 3: Cross multiply
    125,838.10x = 173,681.45 × 72,159.40
  4. Step 4: Simplify right side
    125,838.10x = 12,532,749,223.13
  5. Step 5: Solve for x
    x = 12,532,749,223.13/125,838.10
  6. Step 6: Final answer
    x = 99,594.23

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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.