Home / 153,931.29-212,295.47-118,207.77

Finding the Fourth Proportional to 153,931.29, 212,295.47 and 118,207.77

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Solution

The fourth proportional to 153,931.29, 212,295.47 and 118,207.77 is: 163,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,931.29 : 212,295.47 = 118,207.77 : x
  2. Step 2: Convert to fraction form
    153,931.29/212,295.47 = 118,207.77/x
  3. Step 3: Cross multiply
    153,931.29x = 212,295.47 × 118,207.77
  4. Step 4: Simplify right side
    153,931.29x = 25,094,973,498.76
  5. Step 5: Solve for x
    x = 25,094,973,498.76/153,931.29
  6. Step 6: Final answer
    x = 163,027.11

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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.